Cleansing device for water-tube boilers



L. s. BETANCOURT. CLEANSING DEVICE FOR WATER TUBE BOI LERS.

APPLICATION FILED MOV.13, I918.

hmma. a1. 1., mm.

3 $HEETSSHEET l.

L. s'; BETANCOURT. CLEANSING DEVICE FOR WATER IUBE BOILRS2 'PatentedMar.1, 1921.

-L. s. BETANCOURT. CLEANSING DEVICE FOR WATER TUBE BOILERS APPLICATIONFILED Ni. [3, 1918.

LEOPOLDO SUPERVIELLE BETANCOURT, DE HABANA CUI 3A CLEANSING DEVICE FORWATER-TUBE 3011.33

ascents.

\ Specification of I etters .Pate'fit.

- Patented Mar. 1,1921.

Application filed November 13, 1918. Serial No. 262,331.

7'0 all 201cm it may concern Be it known that I, Lnoronno SurnuvrnnnnBnTANcoInrr, a citizen of the Republic of (luba,-and resident of Habana,Republic of Cuba, haye invented certain new and useful Improvements in(.lleansing- Devices for "Water-Tube Boilers, of which the following isa specification.

This invention relates to devices for cleansing water tube boilers,especially to the cleansing device or mechanical blowing' pipe formingthe subject-matter of my mpending application-filed November 2nd,

1917. Serial No. 199,940 and its object is to provide certainimproven'ie nts in said cleansing device with the aim'of simplifying theconstruction of their various parts, thus 'aid ing its mounting andoperation, and thereby obtaining a more economical device.

Another object of the invention is to .provide means connected with thecleansing device in the furnaces of the water tube boilers in order toprotect such devices against the injurious action of the fire while sameare inoperative or not working.

In the annexed drawings? Figure l is a perspective view showing thecleansing device provided with the improvements forming thesubject-matter of this invention.

F ig. 2 is a longitudinal vertical section showing the inside of thesame device.

Fig. 3 is a detail showing in a front elevation the central part of thesteam inject-v ingx tube.

F ig. Q is an upper view of the cleansing device in operative positionmounted through a wall of the boiler furnace.

Fig. 5 is an inner front view of the same, cleansing device in operativeposition.

Fig. 6 is an upper view of the cleansing device'in its inoperativeposition mounted through the wall of the boiler furnace.

And Fig; 57 is a partial outer front view of the furnace wall throughwhich the cleansing device is mounted.

This improved device comprises a horizontal cylindrical chamber 1 openedon both ends and provided' at its bottom with an extension 2 having adouble wine 3 for securing same by means of screws 4 on the web of an Ibeam 5 scar-fed in horizontal i position in the lateral wall 6 of afurnace for awater tube boiler, through an opening; 7 formed in saidwall and lengthwise of which opening said cylindrical chamber is placed.braid chamber has at a side and near its outer end an inlet 8 forsupplying steam and that outer end is widened so as to form packing box8 within which a plurality of leather washers 5) fit and which is closedby a threaded cover 10. These washers 8 and cover 10 are crossed attheir centerby a stem 11 having on its outer end a handle 12 arrangedthrough a hole thereof on the re- 6 duced end of said stem and securedby a nut 13 which is threaded on said threaded end, and the inner end ofsaid stem ll is threaded in a tapering joint piece 14 which is providedwith a plurality of side open- 70.

lugs 15 and the portion of larger diameter of said piece 14 is threadedon the inner end of a cylindrical tube 16 concentric with respect tochamber 1 and with respect to stem 11 and extendiru through the otheropen end of said chamber 1 and movable lengthwise through an opening inthe inner end 17 of said chamber 1. ()n the outer end of said pipe 16 isthrcadedly mounted by one of its mouths' thc three month casing ortubular T-shape joint 18, through the other two plain mouths of which isrevolubly mounted the injecting tube 19 formed in single piece andprovided within said casing with two pairs of .openir'igs 20 and 21..The portions of tube 1!)- that are outside of casim '18 are covered withmetallic jacketin tubes '22 to protect the tube against the action ofthe fire, and in transverse holes I extended in longitudinal line on thetube 19 and jacketing tubes 22 there are removablv arranged the smallnipples 23 which serve to dlscharge theqets of steam. These nipples 'arearranged in such a manner that one off them, indicated at 23 which isadjacenttothe plain lower mouth of casing 18, may strike during therotary movement of tube 19 with a butt formed by a semicircular flange18 projecting downward from the "lower portion ofcasing l8 surroundingthe plain mouth and'which is ooncentrical tov tube 19. On this tube andimmediately above the upper plain mouth is secured a beveled crown-gear24 which meshes with a beveled pinion 25 fixed on the end of ahorizontal shaft 26 supported in a bearing formed in a bracket 25projecting upward from the end of the casing 18 in which tube 16 isthreaded and in another bearing formed in an extension of handle 12.Said shaft 26 is provided at the outer end thereot with a hand-wheel 26for its operation. The injecting tube 19 is closed at its ends by meansof threaded caps 27.

Opening-7 of side wall 6- of the furnace wherein the cleansing device islodged, isv

widened at the inner part of the wall and at a certain distance from theinner face of this wall are formed lateral recesses 28 for receiving thehalf-doors 29, 30 which are vertically arranged for closing the opening7 and are mounted on vertical shaft hinges 31 whose bolts are scarred inthe wall-7.

Preferably the half-doors 29, 30 do not fit close together, but to oneof them is attached a covering plate 32 for effecting the closure. Inthis locked position, said halfdoors 29, 30 are resting against theshoul- -ders of said recesses 28 and these halfdoors are tied togetherby means of a loose transverse chain 32 connecting two eyebolts 3a fixedto the outer face of said halt-doors and said chain passes throughbehind the injecti tube 19, whereby is provided an automatic opening andclosing for said half-doors. ()pening 7 is closed on the inher side bymeans of a pair of vertical plates 35, 36 arranged in the same verticalplane and fitting at their edge in a small recess provided in theouter'face of wall 6, and said plates 35, 36 are connected togetler bmeans of two lateral lugs 37 and 38 laterally projecting from eachplate'and which are superposed two by two and are connected by meansof ascrew 39, each late presenting on its face ahandle 40 ancl on the inneradjustingedge a semicircular notch 42 reg-f istering with each other soas-to form a circular opening which serves as a passage for thecylindrical chamber 1, and the notch 42 of the'upper plate 35 isextended upward forminga vertical upward passage 43 which terminates inan arched-shaped passage 44, so as to allow the forward, backward,lateral rocking motion of shaft 26.

. lnits inoperative position the cleansing device is placed partlywithin the narrow part of the opening 7*and partly outside of wall 3,and in communication with the furnace chamber by means of half-doors 29,30. in these conditions, In order to operate the cleansing device, thehandle 12 is grasped with thehand-and a pushing motion toward theinterior of the opening 7 is imparted thereto whereby the injecting tube19" in striking againstthe half-doors 29, 30,

will push in same, thus separating them; as

much as'req uired 'for giving passage to the same injecting tube 19,casing 18, and gears 24, 25,. as it is shown in Fig. 4; of the draW-ings, the half-doors'29, 30 being. held in that position' by means'ofthe transverse.

chain 33 connecting them. Then the injecting tube 19 is arranged in the:proper inclined position by laterally rocking the handle 12, and inorder to rotate the injecting tube 19 on the casing 18 to spread thesteam jets to either side and between the water tubes 45 of the boiler,the hand lever 26' on shaft 26'whichgives motion to the gears I 24,- 25is caused to be rotated, the turning movement of tube 19 being limitedby butt 18" against which the small nipple 23 strikes. Once theoperation of the device has been completed, the handle 12 ispushedbackward, whereby the, injecting tube 19 returns with the casing 18 andthe annexed part of the device, passing first between the two half-doors29, 30 until striking chain 33 and causing thus same to return carryingwith it the two half-doors 29, 30, until the small covering plate 32 maycomplete ly close the opening between the two halfdoors, and thereby theopening 7 being com.-

pletely closed, and the device protected 'vention, which'is as claimedin the appendfor rotary movement, said tube projecting from the innerend of said chamber, an operating stem attached to the outer end of saidtube, a T at the inner end 'of s'aid'tube, a blower header rotatablyattached to said T, a lever attachedto said'stem, a shaft mounted in abearing in said lever and also in a bearing on said T, said shaft beingarranged exteriorly of said chamber, and gears conmeeting said shaft andthe blower header to enable the latter to be turned by said shaft.

2. A cleansing device for water tube boilers comprising a chamber havingmeans to admit fluid thereto, a tube mounted for longi tudinal movementin said chamber and also for rotary movement, said tube projecting fromthe inner end oi said chamber, an oper ating stem attached to the'outerend of said tube, a T at the innerendof said tube, a blower headerrotatably attached to said T, a lever attached to Sfl-Hl stem, a shaftmountaoogm l 3 cm 111 a bearing in said le-vsr and. also in a header,and means mounmd vii saki chum;- v nearing on said '2', said shaft beingarranged ber attthe inner end thereof to coact with-- extet'iox'ly ofsaid chamber, and gears consaid lever and limit this extent of rocking1a: necaing said shaft and the blower header to, movement of the blowerheader,

0 enalrfie flue iattor Lobe turned by said shaft, In witness whereofaffix my signature.

said 'R.zmd bibwez' header having means to 1 limit taming movement ofthe blower LEOPOLW SUPERVIELLE BETARCQWT-

